Through PLC control, the glass processing data can be set on the interface. It can perform one-pass operation of coarse and fine grinding and polishing in precise, stable and reliable way.

采用PLC控制电流通过界面设定玻璃加公数据，具有粗精磨抛光一次完成，准确、稳定可靠。

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If more than one column is aggregated using the same grouping key or without a grouping key, then all the aggregations are computed within the same operation with a single pass over the data.

如果利用相同的分组关键字或者没有分组关键字，来聚合多个列，那么，所有的聚合都在单个数据传递中的相同操作中进行。

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Selection of part of a wave on account of time or magnitude. Operation of a circuit when one wave allows another to pass during specific intervals.

根据时间或幅度选择波形的一部分，即在一个特定的间隔里一个波形允许另一个波形通过电路的动作。

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